416 The Philippine Journal of Science 1921 
white pubescence; antenna black, reaching to apical fourth of 
pronotum; clypeal suture not distinct at middle; epistoma wide, 
transverse between the antenna. Pronotum much wider than 
long, slightly narrower in front than behind; sides scarcely 
flattened, regularly -arcuate, with the lateral margin crenulate ; 
anterior margin bisinuate, with the median lobe broadly 
rounded; base bisinuate, with the median lobe broadly rounded 
in front of scutellum; lateral carina slightly arcuate, reaching 
perpendicularly from posterior angle to apical third ; disk 
regularly convex, limited at basal third by a broadly rounded 
transverse depression, the depression becoming deeper near 
lateral carina; surface moderately punctate and rather densely 
clothed with short white hairs- Scutellum large, triangular; 
surface finely reticulate. Elytral base about equal in width to 
pronotum at middle, rather convex, with shallow basal depres- 
sions, and an oblong depression along lateral margin behind 
humeri; sides parallel to middle, expanded at apical third, then 
arcuately attenuate to tips, which are separately rounded and 
finely dentate; surface finely imbricate at base, becoming finely 
punctate toward apex, sparsely clothed with inconspicuous hairs 
of the same color as the surface, and also by a series of broader 
white hairs, forming designs as follows: On the basal half an 
irregular longitudinal band on median part and another along 
suture, these somewhat broken up and connected at basal fourth, 
a transverse zigzag band at apical fourth connected along 
suture and lateral margin to a straight transverse band at apical 
fifth. Abdomen finely punctate and sparsely rugose. 
Length, 5 millimeters; width, 1.9. 
Described from a single specimen from Malinao, Tayabas 
Province, Luzon (Baker). 
S ambus aeneicollis sp. nov. 
Rather robust, parallel to apical third; head and pronotum 
of a bright coppery bronze ; elytra black and marked with trans- 
verse zigzag bands of silvery white pubescence; beneath black, 
clothed with short white pubescence. 
Head broadly grooved, the groove becoming deeper on vertex 
and occiput, slightly gibbose on occiput and vertex, finely, 
densely granulate and sparsely clothed with rather short white 
and yellow hairs intermixed; antennae bronzy, short, reaching 
to apical third of pronotum; clypeal suture distinct; epistoma 
wide, transverse between the antennae. Pronotum much wider 
than long, about as wide in front as behind; sides flattened and 
